Joint



1937. w J. BROWN' 2,090,497

JOINT A Filed Aug. s, 1936 2 sheets-sneak 1 "icr.

Tic i WILL/AM JEFFRIES BROWN 7 INVENTOR ATTORNEY A u .17,1937. I w. ,1. BROWN 2,090,497

JOINT Filed Aug. 55, 1936 2 Sheets-Sheet 2 I I I ATTORNEY racemes Aug. 17, 1937 I Lactose! some William Jeflrles Brown, New mi. N. EL, as-

sighor of one-eighth to Ernest W. Ber Li 1|; and one-eighth to Tyree Dill! New York, N. Y.

Jr wt. .in, both of Application August a, 1936. Serial no. taste In France October 23,1935

Ls Claims. (01. ass-131) The present invention relates to joints used in the joining of pipes and particularly to that type of joint commonly known as a flange. union.

Heretofore flanges either came manufactured integral with the pipe or were screwed, rolled,

soldered or welded on the pipes." Flanges manufactured on the pipes invariably call for special lengths of pipe varying from the standard. In case the flanges are screwed, rolled, welded or 0 otherwise fastened to the pipe length a separate operation is required which increases the cost of installation and causes in many cases an important delay in the time required to finish the work. v

The object of the present invention is to eliminate these disadvantages and to produce a flange 'union which may be complete in itself or may be coupled with a pipe having an integral or standard flange.

A further object is to produce a low cost union that will give astrong tight joint and which may be used upon pipes without any preliminary preparation of the pipe to receive the joint or change it'from its standard form, thus producing an economical assembly means.

My joint comprises an element adapted to be slipped over the pipe and be compressed against the pipe by a flanged compression element when two such assemblies are secured together. In the preferred modification of my invention the compressed element consists of a collar of substantially plastic material which engages the outer cylindrical surface of the pipe. The exterior surface of this collar is substantially in the form of a truncated cone. A compression element preferably in the form of a flange is adapted to ride over the substantially truncated portion of the collar to compress this element into close contact with the outside cylindrical I surface of the pipe. This permits the joining of the pipe carrying these two elements either to-- gether or to standard fittings now in common use. i The foregoing and other features of my invention will now be described in connection with the accompanying two sheets of drawings, form'- ing part of this specification in which I have represented my Joint in its preferred form, after which I shall point out more particularly in the claims those features which I believe to be new andof my own invention.

in the drawings: Figure l is a longitudinalsection through my joint. i

Figure 2 is a longitudinal section througha ipe joint, one of the pipes supplied with a screw threaded flange and the other pipe supplied with my slip-on flange.

Figure 3 is a side elevation of my compressed element in. position on a pipe.

Figure 4 is a side elevation of a section of a pipe on which is mounted my flange which compresses the compressed element when the joint is assembled. I

Figures-5 to 8 inclusive illustrate modifications in part of the joining of the collars. These views are all longitudinal sections through the com pressed collars.

In carrying out my invention each piece of pipe l0 receives a collar II which is compressed against the outside of the-pipe it by the collar or flange i2 when fastened by the bolts IS.

The collar ii in absence of any compression fits loosely over the pipe and is provided with an annular cavity it of triangular cross section in which is closely fitted a washer or bushing or other packing it. It will be observed that this washer or bushing is triangular in cross-section and so positioned that an acute angle is provided to closely idt into the angle of the space H it when pressure is exerted from within the pipe and also has a sharp acute angle to wedge into the opposite acute end of this triangular space I ii when there is a vacuum created within the pipe, thereby ensuring a tight Joint whether or not pressure is exerted from within or without the pipe. I

In Figure 6 the bushing 55 is shown in position of extreme vacuum, whereas in Figures 1 and 2 the bushing it is shown in position of internal pressure.

The collar ii is also provided with a recess I! to accommodate a compressible washer or gasket I9. The collar also has an interior flange 28 against which the end of the pipe iii abuts.

In assembling the union the :ii 1.1. e is r ompression units are first pushed over the exterior of the pipes iii.

the bushings it are inserted in the angular cavity iii in the'coilars and then the collars II are pushed on the pipe until the end of the pipe abuts against the interior flange 20 of the collar.

The ends of the two pipes are brought together after placing the bushing or gasket IS in the space between the two collars H which are held in contact by the flanges it by means of the bolts is.

The outside flanges it are then turned around the collars it so that the holes in the collars .by the fianges on the truncated pliable collars.

' I1 exterior and interior of the gasket.

, and allowing great facility and .the two collars and the two These collars are compressed until they firmly grip the outside surface of the pipe. The amount of pressure that can be applied is very great as will be readily seen for the only contacts between fianges are. the inclined surfaces.

If my compressed collar Ii is constructed of a metal that is not plastic enough to conform and tightly grip the outside cylindrical surface of the pipe, I may provide a plurality of slots 25 in the conical flange to permit it more easily to conform -to the cylindrical surface of the pipe ensuring a tight joint. 7 p

In Figure 5 I show a modified form of my collar I l in that the-inner surface of that portion which slides over the pipe is roughened as at II to better grip the pipe. I also show the gasket ll extending to the inside of the Joint and not held from] extreme eompression by the flanges 11.

In Figure 6 I show two sets of supporting fiang Inl'lgures'land81showatriangulargasket the following claims to cover such modifications v as naturally fall within the lines of invention.

.Iclaim:

1. A Joint of'the class described in combination, a compressible sleeve adapted to'be com pressed against the cylindrical outside of a pipe and having an internal annular recess forming with the wall of the pipe an enclosed annular hollow space and provided with a substantially conical outer surface, a packing ring within the 1101-- low space, the cross section of the packing and the cross section of the space being such that any internal pressure within the pipe tends to force the packing against that portion of the hollow space remote from the critic! the pipe, a flange adapted to ride upon the conical surface, and means to hold the compressed member tight against the pipe. 1

2. 'I'hedevice of claim 1 including an annular cavity in the compressible member adJaeent to the pipe, s packing within the cavity, the cavity having an angular cross section decreasing in joint size in the direction in which internal pressure would, force thepacking intothe decreasing angle between the compressed element and-the surface of the-pipe. 1 3. The device of claim 1 including an annular cavity in. the compressible member adjacent the ofthe cavity presenting an angular cross section decreasing in size in the direction in which ex-' ternal pressure would force the packing into'the decreasing angle between the compressed element .and the surface of the pipe.

4; The device of claim 1 including slots cut part way through the substantially conical portion of the compressible memben- I 5. A Joint of the class described for joining two sections of pipe-together, in-combination, com-.

pressible members on each P pe adapted to, be

pipe, a packing within the cavity.'the cross section compressed against the outside surface of" the pipe, packing means to pack the joint between the Y pipe and compressible members,'flanges adapted I to ride on and compress the compressed member,

a gasket between. 'the compressible members, means to secure the flanges together whereby the compressible members are compressed against the pipes. and the endscompressed against the gasket.

' 6. The device of cavity in the compressible member adjacent to the pipe, a packing within the c'avitmthc'caflty having an angular cross section decreasing in' size in the direction in which interna'lpressure would claim 5 including an annular s force the packing into the decreasing angle. be-

tween the compressed element and the surface-of theplpa m 7. The device of claim 5 including cavityin the compressible member adjac'entjthe pipe, a packing within thecavity, the cross sec, -tion of the cavity presenting an angular cross.

section. decreasing in size in v the direction in which external pressure would force the packing into the decreasing, angle between the compressed element and the surface of the pipe.

' a. A'joint of theclass described for'joiningtwo sections of pipe together, in combination, compressible members on each pipe adapted to be compressed against the outside surface of the pipe, packing means to pack the joint between the pipe and compressible members, flanges adapted to ride on and compress the compressed member,

a gasket between the compressible members, means to secure the flanges together whereby the pipes and the gaskets. v

WILLIAM JEFF'RIES BROWN.

1 the'compressible members are compressed against 

